Yen-Feng Chao

Title: Yen-Feng Chao: Innovator in Power Detection Technology

Introduction

Yen-Feng Chao is a notable inventor based in Pleasanton, California. He has made significant contributions to the field of power detection technology. His innovative approach has led to the development of a unique power detection circuit that enhances performance in various applications.

Latest Patents

Yen-Feng Chao holds a patent for a "Wide dynamic range power detection scheme." This invention describes a power detection circuit that provides a wide dynamic range for power detection. The circuit utilizes a coupler to sample transmitted or received power. The sampled power is directed to a detector diode, which generates a voltage from its rectified current. This voltage is then filtered and buffered before being sent to multiple amplifiers, each with a distinct gain. To improve noise immunity, a differential output amplifier may be employed. For low power levels, the output from an amplifier with a large gain is directed to an analog-to-digital converter (ADC), quantizing the analog voltage into a digital value. As power levels increase, the output from an amplifier stage with a smaller gain is directed to the ADC to prevent saturation. Hysteresis is also implemented to avoid rapid switching.

Career Highlights

Yen-Feng Chao is currently associated with Harris Stratex Networks Operating Corporation, where he continues to innovate in the field of power detection. His work has been instrumental in advancing technologies that require precise power measurement and detection.

Collaborations

Yen-Feng Chao collaborates with Cuong D Nguyen, contributing to the development of cutting-edge technologies in their field.

Conclusion

Yen-Feng Chao's contributions to power detection technology exemplify the impact of innovative thinking in engineering. His patent and ongoing work at Harris Stratex Networks Operating Corporation highlight his commitment to advancing technology in this critical area.